The correct information should be "For the HP MFP 8400 series printers" as there is no mention of E77830 or E77822 in the specifications provided.
For the HP MFP 8400 series printers, the Tools JC92-02964A Flow PCA ADF HIC GX would be a best fit for customers who need to manage and maintain their network devices, including printers, from a single console.
